Soil Type: Normal/Loam or Sandy/LightSoil Moisture: Moist, but well drained

Other features: the seeds can cause severe discomfort if ingested

Cheerful spires of yellow pea-like flowers from June to July above dense clumps of mid-green leaves. This popular cottage garden perennial is perfect for the middle of a sunny border. To encourage a second flush of flowers in September and prevent the plant from looking scruffy deadhead after the first flowers have faded.

Garden care: Stake with bamboo canes in spring before the flowers appear and deadhead the faded blooms to encourage a second flush of flowers. Avoid excessive winter wet.